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Finding the Fourth Proportional to 137,835.80, 206,753.70 and 132,003.80

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Solution

The fourth proportional to 137,835.80, 206,753.70 and 132,003.80 is: 198,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,835.80 : 206,753.70 = 132,003.80 : x
  2. Step 2: Convert to fraction form
    137,835.80/206,753.70 = 132,003.80/x
  3. Step 3: Cross multiply
    137,835.80x = 206,753.70 × 132,003.80
  4. Step 4: Simplify right side
    137,835.80x = 27,292,274,064.06
  5. Step 5: Solve for x
    x = 27,292,274,064.06/137,835.80
  6. Step 6: Final answer
    x = 198,005.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.